Improved means for revolving the breeches of repeating fire-arms



J. WARNER.

Revolver.

Patented Jan. 7, 1851.

UNITED STATES PATENT OFFICE.

JAMES \VARNER, OF SPRINGFIELD, MASSACHUSETTS.

IMPROVED MEANS FOR REVOLVING THE BREECHES 0F REPEATING FIRE-ARMS.

Specification forming part of Letters Patent No. 7,894, dated January 7,1851.

To all whom it may concern:

Be it known that I, JAMES WARNER, of Springfield, in the county ofHampden and State of Massachusetts, haveinvented an Improvement inRevolving Fire-Arms; and Ido hereby declare the following to be a full,clear, and exact description of the same, reference being had to theannexed drawings, making a part of this specification, in Whith- FigureIis a top View of the working parts by which the revolution is effected.Fig. 11 is a view in perspective of thelock detached from the pistol.Fig. III is a view in perspective of the rear end of the chamber; andsimilar letters ref'er to similar parts throughout.

The nature of my invention consists in such construction of a revolvingchambered pistol that thechambcrs will be caused to revolve by theaction of a lever of which the fulcrum or axis of vibration is in line,or nearly so, with the axis of rotation of the chamber, whereby I amenabled to effect the revolution of the chambers with greater certainty,and by sim plit'ying the construction to diminish the cost ofmanufacture, as well as the liability to derangement in rapid action.

The general appearance of my pistol is as of usual construction; but onthe plate of the lock, and at right angles with it, extending into thehollow space within the grasp or handle, I affix two arms, a a, assupports for the shaft and lever which effect the rotation. In

these arms a shaft, b,is fitted tdhave vibratory motion at such distancefrom the plate of the lock that its axis of vibration will lie in thecontinuation of the line of rotation of the chambers; or it may beat ashort distance tarther from the plate, as shown in Fig. I. ()n theforward end of this shaft is a crank, 0, extending nearly to the plateof the lock, and the pin e of this crank is made solid with it andoperates through a circular slot in the shieldplate d upon a ratchet onthe rear end of the 'chamber& which is of the common construc tion seenin Fig. III. A pin, 1', projects from the forward part of the tumbler,and is for the purpose of imparting motion to the shaft.

This iteftects by means of a double cam formed on the shaft, as seen atm, and between the forks of which the pin works, as seen in Fig. II. Theshaft has a degree of horizontal sliding motion equal to the depth ofthe notches w, and when thrown forward by the helical spring 0 pressingagainst the rear arm a a shoulder, r, on the shaft bears against the arma, keepingit in proper place. The chamber is held in position by adevice of common construction which operates in the notch s on the rearend of the chamber.

The operation will be thus: When the hammer rests upon the nipple thepin eot' the crank will be protruded through the shield plate into theupper and deepest part of one of the notches on the rear end of thechamber, as at n. If now the operation of cooking be performed, theforward part of the tumbler is of course raised, and the pin t' givingmotion to the shaft I) by means of the double cam m, the

crank causes the chamber to make that part of a revolution due to thedistance through which the crank is arranged to be moved. If the hammerbe now dropped upon the nipple, as in firing, the pin 6 on the tumblerwill cause the shaft to return to its former position, and the pin 60fthe crank passingover the inclined surtace ot' the notch downward causesthe shaft to slide horizontally backward in the arms out until thecrank-pin is depressed to a distance which allows it to enter the nextlower notch,-

when the action of the spring on the shaft throws it forward ready to beagain raised.

What I claim as of my own invention, and desire to secure by LettersPatentot' the United States, is-

The cranked shaft 6 0 o, operated by the tumbler, having its axis ofvibration in the line, or nearly so, with the axis of rotation of thecylinder, substantially in themanner herein set forth.

JAMES WARNER.

Witnesses:

S. H. MAYNARD, J OHN W. KILsBY.

